{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["enabling technology", "process characterization", "manufacturing standard", "application", "biomedical", "machanical property"], "input": "It was found that there existed a large stress concentration in the conventional welded joints , whereas those welded joints with elongated weld bead were accompanied by a lower stress concentration , especially for elongated weld bead with MTT design ."}
{"enabling technology": [], "process characterization": ["stress concentration"], "manufacturing standard": [], "application": [], "biomedical": [], "machanical property": []}